EP 2631071 B1 20150617 - Liquid ejecting head and liquid ejecting apparatus
Title (en)
Liquid ejecting head and liquid ejecting apparatus
Title (de)
Flüssigkeitsausstoßkopf und Flüssigkeitsausstoßvorrichtung
Title (fr)
Tête d'éjection de liquide et appareil d'éjection de liquide
Publication
Application
Priority
- JP 2012039533 A 20120227
- JP 2012041933 A 20120228
Abstract (en)
[origin: EP2631071A1] A liquid ejecting head includes nozzles which eject the liquid; pressure chambers which communicate with the nozzle; a pressure chamber substrate in which the pressure chambers are defined by partition walls; a piezoelectric element which generates a pressure change in a ink inside the pressure chamber; and a nozzle forming substrate which is joined to the pressure chamber substrate by adhesive and defines the bottom portion of the pressure chamber, the organic solvent-based ink having a compression rate greater than a compression rate of water is ejected from the nozzle by driving the piezoelectric element and by generating the pressure change in the pressure chamber, and when a width of the pressure chamber in an arrangement direction of the pressure chambers is W and a width of the adhesive in the arrangement direction of the pressure chambers in a state where the adhesive is flowed out from between a lower end portion of the partition wall and the bottom member to the pressure chamber side and then is solidified is L, the following expression is satisfied, 0.05 ‰¤ L/W ‰¤ 0.3.
IPC 8 full level
CPC (source: EP US)
B41J 2/14201 (2013.01 - US); B41J 2/14233 (2013.01 - EP US); B41J 2/161 (2013.01 - EP US); B41J 2/1623 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2631071 A1 20130828; EP 2631071 B1 20150617; CN 103342051 A 20131009; CN 103342051 B 20150715; US 2013222487 A1 20130829; US 8696093 B2 20140415
DOCDB simple family (application)
EP 13156813 A 20130226; CN 201310062479 A 20130227; US 201313777115 A 20130226